JMS QueueBrowser returns void enumeration

It seems that oc4j 9.0.3 is not returning correctly the queue elements via QueueBrowser.getEnumeration(). The enumeration has no elements even when the queue has many of them. Here it is a code snippet:
Context context = new InitialContext();
// Lookup the managed connection factory for a Queue
QueueConnectionFactory queueFactory = (QueueConnectionFactory)context.lookup("java:comp/env/jms/BgPrintQueueFactory");
// Create a connection to the JMS provider
QueueConnection queueConnection = queueFactory.createQueueConnection();
queueConnection.start();
// Create a Queue session
QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
// Lookup the destination you want to publish to
Queue queue = (Queue)context.lookup("java:comp/env/jms/BgPrintQueue");
// Create a browser
QueueBrowser qbrowser = session.createBrowser(queue);
// get elements in queue
Enumeration enum = qbrowser.getEnumeration();
Am I doing something wrong or is there any problem with the oc4j classes implementing the queue or the browser? If so, any alternative to plug an external QueueBrowser into oc4j?
Thanks,
Modulab

I am using oc4j 9.0.3 and running the lightweight oc4j JMS implementation.
The following post on the general Oracle 9iAS forum seems to suggest there are some jms features not implemented in the lightweight jms implementation:
Re: Oracle Light weight JMS & Oracle9iAS 9.0.4
1.Is the QueueBrowser one of these non-implemented features?
2.If so, is oc4j9.0.4 fixing it and when is it to be released? (I expect something less vague than "later that year").
3.Is the lightweight implementation documented? How can I know which features are running ok and which aren't?
Thanks,
Modulab

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Returning an Enumeration....

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Malloc() function in C -- returns void or character pointer?

I've been learning about the free store and heap memory and what not, and I've got two books telling me two different things. One is telling me that the malloc() function returns a void pointer (note: this book has been wrong before) and the other is telling me that it always returns a character pointer. Which is correct? Thanks!

Tron55555 wrote:
when you say "if it's declared as returning a char pointer", are you referring to a theoretical scenario with a different compiler that has declared malloc as returning a char pointer instead of a void pointer? Do I have your meaning right?
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Void and return help

whats the difference of using void and using the return?
i used last time the void and return, but the outputs of the two are the same

CodeSniffer wrote:
raychen wrote:
Using return within a method that returns void is just a quick way to go all the way to the end of the method. It is a goto in disguise, but sometimes it may make your code cleaner.yeah, thats what i saw when im trying to figure out whats the diff of the twoAsking about the difference between void and return is like asking about the difference between being bald and leaving your house. The two are not in any way related, and there's no context in which you can choose between one and the other.
You're going to have to clarify your question.
Do you know what void means?
Do you know what return does?
If you answered yes to both, then I really have no idea what you're confused about.

How to define a function that returns a void?

Hi all,
How can I define a custom function that returns a void?
My understanding is simple UDF can only return a string.
Is there any way around this limitation?
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> Hi,
> User Defined Function in XI always return a String.
>
> If you requirement is that you want to perfrom some
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>
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>
Hi all,
Thank you all for your kind responses.
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Currently, my UDF returns an empty string, by using the implementation as below, I manage to perform my desired operation without affecting the result:
MessageId -- UDF -- CONCAT -
InstitutionCD_Transformed
InstitutionCode_____
But as you can see, this is not an elegant way of doing things.
That's why I'm seeking alternative solutions for this problem.
Bhavesh, you mentioned something about doing the operation in the initialization/cleanup section.
Can you please explain more?
Thanks.
Ron

Send message only if not alredy in jms

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Queue queue = ...
QueueSession session = ...
QueueBrowser browser = session.createBrowser(queue, "MyProperty = 'some value'");
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A RunTime exception in JMS

          I am using weblogic server 6.0 service pack 2.
          The problem is in runtime exception in JMS.
          Here is an exception I am getting:
          java.lang.RuntimeException: Client possibly malfunctioning as RuntimeException thrown
          from the onMessage routine of the client
          at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:1938)
          at weblogic.jms.client.JMSSession.run(JMSSession.java:881)
          at weblogic.jms.backend.BEServerSession.execute(BEServerSession.java:83)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          This occurs in the line
          >bsender = bsession.createSender(bqueue);
          of the class, in the onMessage method.
          What is the reason for the exception? What can be done to fix it? I just need to
          process several messages in parallel.
          I have a startup class RateQuoteJMSResponse, that calls JMS.
          This happens only when I have a message listeners pool. When I did not use the pool,
          it worked OK. But I want to allow processing messages in parallel, and as I understand,
          there is no other option except using ServerSessionPool.
          When I tried to do that just with QueueReceiver, it worked OK:
                    qreceiver = qsession.createReceiver (queue);
                    qreceiver.setMessageListener (this);
                    qcon.start();
          However, that way messages were not processed in parallel.
          Here is my code:
          package com.bbb.object.jms;
          import java.io.*;
          import java.util.*;
          import javax.jts.*;
          import javax.naming.*;
          import javax.jms.*;
          import com.bbb.object.*;
          import com.bbb.object.RateQuote.*;
          import org.apache.crimson.tree.*;
          import org.w3c.dom.*;
          import weblogic.jms.extensions.JMSHelper;
          import weblogic.jms.ServerSessionPoolFactory;
          public class RateQuoteJMSResponse implements MessageListener
               private final static String JNDI_FACTORY="weblogic.jndi.WLInitialContextFactory";
               private final static String JMS_FACTORY="weblogic.closs.jms.QueueConnectionFactory";
               private final static String SESSION_POOL_FACTORY="weblogic.jms.ServerSessionPoolFactory:ClossJMSServer";
               private final static int ALL_OCCUPIED = -1;
               private static REServer servers [];
               private static REServersThrottle throttle;
               private QueueConnectionFactory qconFactory;
               private QueueConnection qcon;
               private QueueSession qsession;
               private QueueSession bsession;
               //private QueueReceiver qreceiver;
               private QueueSender bsender = null;
               private Queue queue;
               private Queue bqueue;
               private ServerSessionPoolFactory sessionPoolFactory;
               private ServerSessionPool sessionPool;
               private ConnectionConsumer consumer;
               private int findUnoccupiedServer ()
                    for (int ii = 0; ii < servers.length; ii++)
                         if (servers[ii].isActive () && !servers [ii].isOccupied ())
                              return ii;
                    return ALL_OCCUPIED;
               private synchronized void updateServers (ActiveServers activeServers)
                    for (int ii = 0; ii < servers.length; ii++)
                         boolean wasActive = servers[ii].isActive ();
                         boolean nowActive = activeServers.isAlive (servers[ii].getHostName ());
                         if (wasActive && !nowActive)
                              throttle.removeResource ();
                              Logging.debugInfoLog ("Resource removed");
                         else if (!wasActive && nowActive)
                              throttle.addResource ();
                              Logging.debugInfoLog ("Resource added");
                         servers [ii].setActive (nowActive);
               // MessageListener interface
               //public void processMessage (Message msgIn)
               public void onMessage (Message msgIn)
                    Logging.debugInfoLog ("Starting onMessage");
                    ActiveServers activeServers = null;
                    try
                         activeServers = new ActiveServers();
                    catch (Exception ignored) {}
                    Logging.debugInfoLog ("Active Servers file read");
                    updateServers (activeServers);
                    Logging.debugInfoLog ("Servers updated");
                    throttle.getResource ();
                    Logging.debugInfoLog ("Resource got");
                    try
          Logging.debugInfoLog ("0");
                    String msgTextIn;
                         ObjectMessage msgOut;
                         RateQuoteGetBase rateQuoteGet;
                         RateQuoteGetXML rateQuoteGetXML;
          Logging.debugInfoLog ("1");
                         if (msgIn == null)
          Logging.debugInfoLog ("2");
                              rateQuoteGet = new RateQuoteGetBase ("Cannot receive a rate quote back from JMS.");
                              msgTextIn = "";
                         else
          Logging.debugInfoLog ("3");
                              if (msgIn instanceof TextMessage)
                              msgTextIn = ((TextMessage)msgIn).getText();
                              else
                              msgTextIn = msgIn.toString();
          Logging.debugInfoLog ("4");
                              bqueue = (Queue) msgIn.getJMSReplyTo ();
          Logging.debugInfoLog ("8");
                              bsender = bsession.createSender(bqueue);
          Logging.debugInfoLog ("9");
                              bsender.setDeliveryMode (javax.jms.DeliveryMode.NON_PERSISTENT);
          Logging.debugInfoLog ("10");
                              Logging.debugInfoLog ("Prepareing to find unoccupied server");
                              int selectedServer = findUnoccupiedServer ();
                              Logging.debugInfoLog ("Unoccupied server found: " + selectedServer);
                              if (selectedServer == ALL_OCCUPIED)
                                   rateQuoteGet = new RateQuoteGetBase ("No nonoccupied rating engines found.");
                                   msgTextIn = "";
                              else
                                   servers [selectedServer].setOccupied ();
                                   Logging.debugInfoLog ("Set occupied: " + selectedServer);
                                   String hostname = servers [selectedServer].getHostName ();
                                   int portId = servers [selectedServer].getPortId ();
                                   rateQuoteGet = new RateQuoteGetBase (hostname, portId);
                                   rateQuoteGetXML = new RateQuoteGetXML (new RateQuoteGet (rateQuoteGet));
                                   rateQuoteGetXML.prepareXML ();
                                   servers [selectedServer].setUnOccupied ();
                                   Logging.debugInfoLog ("Set unoccupied: " + selectedServer);
                                   if (!rateQuoteGetXML.hasErrorOccured ())
                                        rateQuoteGet.sendXML (msgTextIn);
                                        rateQuoteGet.prepareXML ();
                         Logging.debugInfoLog("Message Received: " + msgTextIn );
                         msgOut = bsession.createObjectMessage ();
                         msgOut.setObject (rateQuoteGet);
                         bsender.send (msgOut, javax.jms.DeliveryMode.NON_PERSISTENT,
                                        javax.jms.Message.DEFAULT_PRIORITY, 18000000L);
                    Logging.debugInfoLog("Message Sent Back: " + rateQuoteGet.getXML());
                         Logging.debugInfoLog ("End of massage sent back");
                         rateQuoteGet.debugPrint ();
                    catch (JMSException jmse)
          Logging.debugInfoLog ("5");
                    jmse.printStackTrace();
          Logging.debugInfoLog ("6");
                    try
                         if (bsender != null)
                              bsender.close ();
                    catch (JMSException ignored) {}
                    finally
                         bsender = null;
          Logging.debugInfoLog ("7");
                    try
                         throttle.freeResource ();
                         Logging.debugInfoLog ("Resource freed");
                         Logging.debugInfoLog ("Finishing onMessage");
                    catch (Exception ignored) {}
          * Create all the necessary objects for receiving
          * messages from a JMS queue.
               public void init(Context ctx, String queueName, int countListeners) throws NamingException,
          JMSException
                    //Logging.debugInfoLog ("Class name: " + this.getClass().getName());
                    qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
                    qcon = qconFactory.createQueueConnection();
                    qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
                    bsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
                    try
                    queue = (Queue) ctx.lookup(queueName);
                    catch (NamingException ne)
                         ne.printStackTrace ();
                         //queue = (Queue) ctx.lookup (queueName);
                    //queue = qsession.createQueue (queueName);
                         //queue = JMSHelper.createPermanentQueueAsync(ctx, "closs", "ClossJMSServer",
          queueName, JNDI_FACTORY);
                         //JMSHelper.createPermanentQueueAsync(ctx, "ClossJMSServer", queueName, JNDI_FACTORY);
                         //queue = qsession.createQueue("ClossJMSServer/" + queueName);
                         //queue = createPermanentQueueAsync(ctx, jmsServerName, queueName, jndiName);
                    //ctx.bind(queueName, queue);
                    //qreceiver = qsession.createReceiver (queue);
                    //qreceiver.setMessageListener (this);
                    qcon.start();
                    sessionPoolFactory = (ServerSessionPoolFactory) ctx.lookup (SESSION_POOL_FACTORY);
                    sessionPool = sessionPoolFactory.getServerSessionPool (     qcon,
                                                                      countListeners,
                                                                      false,
                                                  Session.AUTO_ACKNOWLEDGE,
                                                  this.getClass().getName());
                    ConnectionConsumer consumer = qcon.createConnectionConsumer (queue, "", sessionPool,
          3*countListeners);
          * Close JMS objects.
               public void close()
                    try
                         //if (qreceiver != null)
                         //     qreceiver.close();
                         if (consumer != null)
                              consumer.close();
                    catch (JMSException ignored){}
                    //qreceiver = null;
                    consumer = null;
                    try
                         if (qsession != null)
                              qsession.close();
                    catch (JMSException ignored){}
                    qsession = null;
                    try
                         if (bsender != null)
                              bsender.close();
                    catch (JMSException ignored){}
                    bsender = null;
                    try
                         if (bsession != null)
                              bsession.close();
                    catch (JMSException ignored){}
                    bsession = null;
                    try
                         if (qcon != null)
                              qcon.close();
                    catch (JMSException ignored){}
                    qcon = null;
          * Receive a JMS message.
               //public Message receive() throws JMSException
               //     return qreceiver.receive ();
               public static void main (String[] args) throws Exception
                    Message msg;
                    int len = args.length;
                    if (len %2 != 0 || len == 0)
                    Logging.debugInfoLog("Usage: java RateQuoteJMSResponse hostname portid hostname
          portid ...");
                    return;
                    int reCount = len/2;
                    throttle = new REServersThrottle (0);
                    servers = new REServer [reCount];
                    for (int ii = 0; ii < reCount; ii++)
                         servers [ii] = new REServer (args [2*ii], args [2*ii + 1]);
                    //Logging.debugInfoLog ("Arguments: " + args[0] + " " + args[1]);
                    InitialContext ic = getInitialContext (ClickProperties.getInitialContext());
                    RateQuoteJMSResponse qr = new RateQuoteJMSResponse ();
                    qr.init (ic, ClickProperties.getJMSQueue(), reCount);
                    Logging.debugInfoLog("JMS Rating Engine Responser Is Ready To Receive Messages.");
                    // Wait until a "quit" message has been received.
                    //synchronized (qr)
               //     while (true)
                    //          msg = qr.receive ();
                    //          Logging.debugInfoLog ("Message received");
                    //          qr.processMessage (msg);
                    //qr.close();
               private static InitialContext getInitialContext (String url) throws NamingException
                    Hashtable env = new Hashtable();
                    env.put (Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
                    env.put (Context.PROVIDER_URL, url);
                    return new InitialContext(env);
          And here is the output from weblogic console:
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Active Servers file rea
          d>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Throttle max increased
          to: 1>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Resource added>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Servers updated>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Throttle count increase
          d to: 1>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <Resource got>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <0>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <1>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <3>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <4>
          <May 15, 2002 11:11:57 AM EDT> <Debug> <Debug Info Log> <8>
          java.lang.RuntimeException: Client possibly malfunctioning as RuntimeException t
          hrown from the onMessage routine of the client
          at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:1938)
          at weblogic.jms.client.JMSSession.run(JMSSession.java:881)
          at weblogic.jms.backend.BEServerSession.execute(BEServerSession.java:83)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          [config.xml]


          Thanks. It creates a new class each time onMessage () is called. I thought it uses
          an existing instance of the class.
          "Zach" <[email protected]> wrote:
          >You need to trap the exception inside the onMessage so you can see the
          >exception that is being thrown by the bsession.createSender call. This
          >stack trace doesn't give enough information. It is just a message saying
          >your code failed to handle and leaked an exception out of the onMessage.
          >If that is the line that failed, then try catch around it and look at the
          >stack trace for that exception.
          >
          >_sjz.
          >
          >"Alexander Rabinowitz" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> I am using weblogic server 6.0 service pack 2.
          >> The problem is in runtime exception in JMS.
          >> Here is an exception I am getting:
          >> java.lang.RuntimeException: Client possibly malfunctioning as
          >RuntimeException thrown
          >> from the onMessage routine of the client
          >> at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:1938)
          >> at weblogic.jms.client.JMSSession.run(JMSSession.java:881)
          >> at
          >weblogic.jms.backend.BEServerSession.execute(BEServerSession.java:83)
          >> at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          >> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >>
          >> This occurs in the line
          >>
          >> >bsender = bsession.createSender(bqueue);
          >>
          >> of the class, in the onMessage method.
          >>
          >> What is the reason for the exception? What can be done to fix it? I just
          >need to
          >> process several messages in parallel.
          >
          >
          >

Does weblogic automatically pools Foreign JMS Connections ?

I cofigured MQ Series connection factories and queues in my weblogic using Foreign JNDI provider feature.
I am sending messages to MQ using common JMS approach
     public void sendMessage(List lnTransactionList) throws JMSException {
          XAQueueConnection conn = null;
          try {
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               QueueSession session = conn.createQueueSession(false,
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          } catch (JMSException ex) {
               throw ex;
          } finally {
               conn.close();
I know that by default weblogic does some pooling for JMS connections and sessions.
Does it work for third-party JMS Connections ?
I checked class names for XAQueueConnection, QueueSession, Queue that weblogic returns for my MQ JNDI objects.
All of them are from IBM libraries.
So I think that default pooling doesn`t work in this case.

Yes, third party pooling is supported and heavily leveraged. JMS resources are automatically pooled when a JMS connection factory is accessed via a standard EJB or Servlet "resource reference" (it is not enough simply to specify a foreign JMS server mapping). You can verify pooling is working by monitoring the stats on the foreign vendor itself, or by monitoring the pool Stats.
Similar to WebLogic JDBC connection pools, pooled JMS resources still implement all of the public interfaces of a foreign vendor and redirect method invocations on these interfaces to the underlying class. This includes proprietary interfaces.
Doc links:
Pooling/Wrapping/Res-Refs:
http://download.oracle.com/docs/cd/E15523_01/web.1111/e13727/j2ee.htm#g1329180
FAQ entry on same:
http://download.oracle.com/docs/cd/E15523_01/web.1111/e13727/interop.htm#i1009836
Tom

Down Casting a Enumeration

I tried the following code snippet.
import java.util.*;
class Strings implements Enumeration {
public boolean hasMoreElements() { return false;}
public Object nextElement() {return null;}
public class MainClass
public static void main(String args[])
Vector VectorObj = new Vector();
VectorObj.add("One");
VectorObj.add("Two");
VectorObj.add("Three");
Strings StringObj = (Strings) VectorObj.elements();
It compiles properly but i get the following run time exception:
java.lang.ClassCastException: java.util.Vector$1
what could be the problem? Do i need to do anything extra for the downcast?
TIA,
Babu

Had a look into the implementation of Vector.elements(). The inner class in elements() was causing the problem.
public Enumeration elements() {
return new Enumeration() {
int count = 0;
public boolean hasMoreElements() {
return count < elementCount;
public Object nextElement() {
synchronized (Vector.this) {
if (count < elementCount) {
return elementData[count++];
throw new NoSuchElementException("Vector Enumeration");
Thanks,
Babu

Pointer to void != pointer to function

Hello C experts,
this is a simple question about SunStudio's understanding of function pointers (it might have been asked before):
Why is the following C code giving me a warning on all Sun compilers:
# cat funcptr.c
int main() {
    void (*func)() = (void*)0;
    return 0;
# cc -c funcptr.c
"funcptr.c", line 2: warning: assignment type mismatch:
     pointer to function() returning void "=" pointer to voidIs the warning emitted by Sun compiler a bug (over-cautions). Other compiler's don't warn here.
Of course, I could use 0 or NULL as rvalue but I'm just wondering...
Jochen

Thanks everybody for your opinions.
@Stephen:
I wasn't aware that data pointers and function pointers may differ in any aspect. In fact, I only know data models that talk about 'pointer' width in general, like LP64 (64-bit wide long- and pointertypes), ILP32 (32-bit wide int-, long- and pointer-types), .. I'm especially surprised to hear that casting between data/function pointers will result in undefined behavior.
Anyway, to properly 'fix' the code above, I must cast the zero to a function pointer (with matching signature) instead of a void pointer. This compiles w/o a warning:
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Jochen

JMS Correlation ID in JMS Receiver Adapter

Hi ,
I am working in PI7.1 on IDOC to JMS interface,
I want set IDOC number as Correlation ID in JMS queue ,
I did following Correlation steps ,
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In Adavanced Tab
Checked Use Adapter specific Message attributes
Checked Fial if Adapter specific Message attributes missing
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I have created user defined function , Not using BPM , i don't have correlation ID in target field data type
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/JMS", "DCJMSCorreleationID");
return conf.put(key, idoc_number);
I tested UDF with mapping to target field, UDF is working .
But in JMS Correlation ID value is null
I am getting error in Communication Channel monitor if ticked check box of fail If adapter-specific message attributes
Message processing failed. Cause: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Dynamic header records are missing/incorrect specified in message: 000c2901-fc48-1def-82f9-4b126dff2151. Erroneous/Unspecified headers are: DCJMSCorreleationID
1/27/10 11:02:36 PM 000c2901-fc48-1def-82f9-4b126dff2151 Dynamic record/records: DCJMSCorreleationID, that correspond to the JMS property/properties: JMSCorrelationID, respectively is/are either missing from the message: 000c2901-fc48-1def-82f9-4b126dff2151, or have invalid types specified in the channel configuration

Hi Swetha ,
Thanks for your response ,
I created user defined function with one parameter , no input parmeter .
My root node of IDOC as Structure type ,
In UDF , i have not mapped the IDOC number
public String CorrelationID(String messageId, Container container) throws StreamTransformationException{
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/JMS", "DCJMSCorreleationID");
return conf.put(key, messageId);
messageId I need map in additonal parameter .
Thanks ,
Laxman.
DCJMSCorreleationID messageId

Set IDOC number as Correlation ID in JMS Receiver Adapter

Hi ,
I am working in PI7.1 on IDOC to JMS interface,
I want set IDOC number as Correlation ID in JMS queue ,
I did following Correlation steps ,
1. Set JMSCorrelation ID to PI Conversation ID
2. Checked JMS CorrelationID of request
3.Value to PI Conversation ID
In Adavanced Tab
Checked Use Adapter specific Message attributes
Checked Fial if Adapter specific Message attributes missing
Checked JMS Message Correlation ID
Additional Parameter
DCJMSCorreleationID String
I have created user defined function , Not using BPM , i don't have correlation ID in target field data type
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/JMS", "DCJMSCorreleationID");
return conf.put(key, messageId);
please help to how to use UDF in mapping for mapping which field .
Thanks ,
Laxman.

Hi Swetha ,
Thanks for your response ,
I created user defined function with one parameter , no input parmeter .
My root node of IDOC as Structure type ,
In UDF , i have not mapped the IDOC number
public String CorrelationID(String messageId, Container container) throws StreamTransformationException{
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/JMS", "DCJMSCorreleationID");
return conf.put(key, messageId);
messageId I need map in additonal parameter .
Thanks ,
Laxman.
DCJMSCorreleationID messageId

ClassCastException with javax.jms.ObjectMessage

Hello
          I have the following problem:
          I filled a JMS queue with ObjectMessages containing a so called container class (self written, plain old java class implementing serializable).
          I have also written a Servlet that runs in the same EAR like the EJB that fills the JMS queue. This servlet uses a JMS QueueBrowser to show the messages. It casts the Message to ObjectMessage, calls getObject() and casts again in my container class.
          Now when I shutdown the server, regenerate my source and restart the server, the last cast to my container class doesn't work anymore (ClassCastException). When I print out the hash value of the class (containerFromObjectMessage.getClass().hashCode() and Container.class.hashCode() those two hashcodes are different!
          Does anybody have an idea? Is there a switch that I have to set to my WLS 8.1 be a little less secure?
          Regards,
          Stephan

Correction:
          This only happens when I don't restart my server. So when I hot deploy the EAR with the new compiled classes it doesn't work (ClassCastException). But when I restart the server the servlet runs fine.
          So there must be a cache in the server or something like that.
          Does anybody know any hints or tips to help me?
          Stephan

How to get something in return?

I'm passing values to my component for an insert into db.
Since this is an insert, my function doesn't return anything,
so I wrote <cfreturn true>
without putting cfreturn I would get an error.
This is fine except that I need my function to return
something, just as an indication to the calling template that the
inserting process is done.
How can i do that?

mega_L,
Please post the contents of your component and the code
calling the component.
Can you give us some more information on what you're trying
to accomplish with your component?
quote:
This is fine except that I need my function to return
something, just as an indication to the calling template that the
inserting process is done.
Why would using a function returning void not be appropriate
for your situation? Even if the function doesn't return a value the
calling page will normally wait for the function to finish before
continuing processing unless your using cfthread or something
similar.
Should your component throw an exception if the query fails
or just return an indication of failure to the calling page?

JMS QueueBrowser returns void enumeration

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